电子的非广延分布对复杂多组分热等离子体中(1+1)维非线性离子声孤波的影响

The effect of electrons' Q-nonextensive distribution on (1+1) dimensional nonlinear ion acoustic solitary waves in a multi-component hot plasma

通过约化摄动方法,研究了电子的非广延分布对多组分热等离子体中(1+1)维非线性离子声孤波.推导得到了用来描述非线性离子声波运动过程的KdV方程,并利用数值模拟的方法,发现复杂等离子体系统的各种参数对非线性离子声孤波的振幅、宽度和波形等存在重要影响.

In this paper,the （1＋1）-dimensional nonlinear ion acoustic solitary waves in a complex multi-component hot plasmas have been studied by using the reductive perturbation method.We obtained the KdV equation which describing the procession of nonlinear ion acoustic solitary waves.Meanwhile,the important influence of different system parameters on the amplitude and width of nonlinear ion acoustic solitary waves have also been investigated by the numerical simulation.